Home / 83,481.24-115,137-73,388.28

Finding the Fourth Proportional to 83,481.24, 115,137 and 73,388.28

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Solution

The fourth proportional to 83,481.24, 115,137 and 73,388.28 is: 101,216.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,481.24 : 115,137 = 73,388.28 : x
  2. Step 2: Convert to fraction form
    83,481.24/115,137 = 73,388.28/x
  3. Step 3: Cross multiply
    83,481.24x = 115,137 × 73,388.28
  4. Step 4: Simplify right side
    83,481.24x = 8,449,706,394.36
  5. Step 5: Solve for x
    x = 8,449,706,394.36/83,481.24
  6. Step 6: Final answer
    x = 101,216.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.